Means for fixing transformers in their oil boxes



p 110092 Sept 30 9 E. LAPP MEANS FOR "FIXING TRANSFORMERS IN THEIR OIL BOXES Filed April 2 1919 FIG-11 Patented Sept. 30, 1924.

UNITED STATES PATENT OFFICE.

EMIL LAIPIP, OF BADEN, SWITZERLAND, ASSIGNOR T0 AKTIENG-ESELLSCHAFT BROVN,

' BOVERI & CIR, OF BADEN, SWITZERLAND.

MEANS FOR FIXING TRANSFORMERS IN Application filed April 2,

To all whom it may concern.

Be it known that I, EMIL LAPr, a citizen of the Swiss Republic, residing at No. 17 Zurcher Strasse, Baden, Switzerland, have invented certain new and useful Improvements in Means for Fixing Transformers in Their Oil Boxes, of which the following is a specification.

As is Well known, oil transformers are usually despatched by the manufacturers to the place of use ready for operation in their boxes which are filled with oil and fastened down. Although even large transformers weighing sometimes several tons are placed without any further fixing means in their oil boxes, it often occurs that they get shifted and damaged in their boxes in the course of trans-shipment, or as a result of jolting in shunting. Further, it is of itself very diflicult and in fact almost impossible to insert the transformer in the oil box which surrounds it fairly tight all round (and whose inner bottom is generally not formed with any fitting surfaces), in such a manner that the insulating sleeves shall be situated exactly at the proper places, that is to say, where the cover of the box is formed with the corresponding apertures. In such cases it is usually necessary to adjust these apertures or the bolt holes of the respective bolted-on parts, which is a laborious and tedious work.

These drawbacks are all avoidedaccording to the present invention.

According to this invention the trans: former is placed without special care into the oil box and is then shifted exactly into its proper place and held immovably in the said proper place by means of set screws acting upon inclined facing bevels formed on rectangular bars, which can be adjusted from outside the box, and form a permanent feature of the fixing means.

In the accompanying drawings,

Figure 1 shows a sectional view of the oil tank with the transformer in position.

Figure 2 is a plan showing the rectangu- THEIR OIL BOXES.

Serial No. 287,094.

lar bars with angular end faces and the transformers in the r relative positions,

showing how the adjusting screws car be r operated from outside of the oil box.

The transformer a is rigidly and permanently fixed to the two iron bars 7) by screws 6, 0. They form in this case the feet for supporting the transformers and are adjus d and held in position by means of the set screws 0 passing through the lower part of the wall of the box d. By making the surfaces of the iron bars 5 with angular faces at each end in pairs with oppositely inclined facing bevels, only four screws are required.

The arrangement of set screws in the lower part of the box necessitates their screwthreads being made fluid-tight against the oil pressure acting upon them. This necessity is obviated if the screws are placed at the top, and project above the surface of the oil or above the cover of the box.

hat I claim is 1. In means for fixing a transformer in its oil box for transport and like purposes, the combination'with said oil box and the transformer body of fixing. members such as screws or bolts adapted to come into operative contact with a foot attached to the core of said transforn'iei. said fixing meniber being operable from the outside of said oil box.

2. In means for fixing a transformer in its oil box for transport and like purposes, the combination with said oil box and the transformer body of fixing members such as screws or bolts adapted to come into opera tive contact with surfaces oppositely in clined in pairs on the foot of said trans-- former, said inclined surfaces having op posite inclinations relatively to their conr mon middle plane, said fixing members being operable from the outside of said oil box.

In testimony whereof I have signed my name to this specification.

EMIL LAPP. 

